Revert #10591: use sbt-jmh 0.3.2
Revert #10591: use sbt-jmh 0.3.2

- sbt-jmh 0.3.2 uses jmh 1.19
- sbt-jmh 0.4.0 uses jmh 1.25

Run the same command:

```
scala3-bench-bootstrapped/jmh:run tests/bench/FindRef.scala
```

sbt-jmh 0.3.2 takes <1 min, while 0.4.0 takes ~8min.

Not much information found in the archive and internet:
https://mail.openjdk.java.net/pipermail/jmh-dev/

Will eventually update when we have a better fix.

dotty-staging/dotty,sjrd/dotty,dotty-staging/dotty,sjrd/dotty,dotty-staging/dotty,sjrd/dotty,lampepfl/dotty,lampepfl/dotty,lampepfl/dotty,dotty-staging/dotty,sjrd/dotty,lampepfl/dotty,lampepfl/dotty,dotty-staging/dotty,sjrd/dotty